barrett



I (No Modem s sheetssheet 1.

J 0. BARRETT.

VISE. No.; 284,997. Patented Sept. 18, 1883,

.naw

Q ne Phmeumogmpm. wmmgwn. n c.

(No Model.) 3 Sheets-Sheet 2.

J'. o. BARRETT.

VISE N0. 284,997. l Patented Sept.A 18, 1883.

WLZvzcJyef, lauwe/Zar Puras. Plwm-Lnmgnyhm. vlamingen. o, c

(No Model.) 3 Sheets--Sheet 3.

J. O. BARRETT.

vist.

Patented Sept. 18, 1888.

UNITED STATES PATENT OFFICE.A

JAMES O. BARRETT, OF ERIE, PENNSYLVANIA.

VISE.

SPECIFICATION forming part of Letters Patent No. 284,997, datedSeptember 18, 1883.

Application filed May 28, 1883. (No model.)

To all whom it may concern:

Be it known that I, JAMEs O. BARRETT, a citizen of the United States,residing at Erie, in the county ofErie and State of Pennsylvania, 5 haveinvented certain new and useful Improvements in Vises; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such aswill enable others skilled in the art to which itappertains to make and use the same.

This invention relates to vises; and it consists in providing new andimproved means for making one of the `jaws pivotal, so that it can bethrown at an angle to the other jaw, and thus enable the jaws to evenlygrip awedgeshaped piece of metal or other object.

I am aware that one or the other of the jaws ofvises has been madepivotal for the abovenamed purpose. My invention therefore consists,wholly, in the construction by which Iach complish the said result.

In the accompanying drawings I show two alternative constructions. By011e the movable or traversing jaw is made pivotal, and by the other thefixed or stationary jaw is made pivotal.

The accompanying drawings show my iuvention as follows:

Figure 1 is a combined side elevation and tion wherein the traveling jawis made pivotal; Fig. 2 is a top or plan view of the same. Fig. 3 isalike view to Fig. 1, showing the construction wherein the Xed jaw ismade pivotal. Fig. 4 isalike view to Fig. 2 of the construction shown inFig. 3. Figs. 5, 6, 7 and 3 are detail views and will be explained fullyhereinafter. Fig. 9 is a perspective of the fixed jaw of my improvedyautomatic adjustable vise. Fig. 10 is a sectional perspective of thefixed jaw. Fig. 11 is the same View shown in Eig. 1o,withswivei-Studsfas shown in Fig. 13, inserted within said figure, andalso showing the vise-box B in' dotted lines. Fig. 12 is a horizontalsection through 1 cylindrical portion of the iiXed j aw and swivelstud,and the vise-box B shown in dotted lines. Fig. 13 is a perspective ofthe swivelstud which contains the nut.

The parts are designated by letters as follows: A is the liXed jaw, andA is its standard or base. B is the traveling jaw, and B its verticallongitudinal section of the construc-v beam. G is thc screw, and CA itsnut. A2 is a swivel-block, which carries the nut G, and is socketed in acircular socket, A, in the base A. a is the slot through the base, and ais the slot through the swivel-block, said slots being for the passageof the beam B.' D is a pin for holding the jaw, which is pivoted fromturning when it is not desired to turn.

The movable or traveling jaw and 4its beam are constructed as usual invises of this dcscription.

The iiXed or bench jaw A and its base A are the only part of the vise inwhich I change the construction. In the two constructions here shown,this part is constructed somewhat differently, as will be seen in Figs.5, 6, 7 and S.

Figs. 5 and 6 show the construction when the A.

traveling jaw is pivoted, and Figs. 6 and 7 where the benchjaw ispivoted. Fig. 5 is a vertical section, and shows the foot, base, and jawall of one piece of metal, and having a central circular socket, A3,cored out of it and opening o ut at the bottoln, and also having a slot,a, through it for the beam B. This central socket receives theswivel-block A2. In Figs. .7 and 8 thc base A has the swivel-block castsolid on it, and the upper or shaft part of the base or standard, inwhich are the cavity A3 and the jaw A, forms another piece of metal,(see Fig. 8,) which sets or caps over the piece shown iu Fig. 7, as willbe seen in Fig. 3.

When the traveling j aw is made to turn, the pivot-block A2 forms apivot for the beam B in the socket A3, and when the bench-j aw A is madeto turn, as in the construction shown on Sheet 2 of the drawings, thepivot-block Al is stationary and allows the j aw to turn upon it. Ineither case the nut C is within the swivel or pivot block A2, and thepivot-block is within the shaft of the standard. The slot 'a throughthis shaft is wide enough to permit the beam to swing within it, or itto swing or turn without being obstructed by the beam.

I am aware of the construction shown in patent to Fraser, July 17, 1855,No. 13,256, in which the movable jaw is pivoted with the nut of thescrew which moves `said jaw, and I do not therefore claim, broadly, suchan arrangement'l of parts; but the construction I here show is differentfrom that shown by Fraser, and the pivotal bearings are much IOO bettercalculated to stand the strain which is incident to the use of a vise.

The office of the screw E in the construction shown in Figs. 3 and I isto hold the pivoted jaw A iirinly down upon the swivelblock. This screwmay not always be necessary; but it insures strength in the joint, and

. so far is desirable.

What I claim as new isd 1. In a vise, one of the jaws of which is piv-vas shown, of the fixed jaw and standard A A, containing the pivot-block;A2, and the traveling jaw B and screw C, with its nut C, within saidpivot-block.

3. In a vise, the combination, substantially as shown, of the bench-j awand its standard A A', Containing the pivot-block A27 the traveling jawB, passing through said pivot-blook, and the screw C, having its nut C'also in said pivot-block. f

In testimony whereof I afx my signature in presence of two witnesses.

JAMES O. BARRETT.

Vitiiesses:

JN0. K. HALLooK, Rois'r. H. PORTER.

